Jason has 28 books in his library. He bought several books at a yard sale over the weekend. He now has 65 books in his library. How many books did he buy at the yard sale A.37
B.93
C.28

The inside wheels of a car traveling on a circular path are rotating half as fast as the outside wheels. the front two wheels are six feet apart. what is the number of feet in the path traced by the inside front wheel in one trip around the circle? express your answer in the form "k \pi", where k is an integer.

Ahiker stands at an unknown elevation before he ascends 2 miles up a mountain to an elevation of 9 miles. find the elevation of the hiker before his ascent.

The graph of a curve that passes the vertical line test is a: